Table 3.

Joint effects of sedentary and active behaviors on ORs of being obese in white women.^{a, b, c, d}

Total sedentary behavior (hrs/day)		Total active behaviors (hrs/day)
		Quartile 4 (> 4.0)		Quartile 3 (2.1 – 4.0)		Quartile 2 (1.1 –2.0)		Quartile 1 (< 1.0)
BMI 25–29 vs BMI < 25 kg/m2
	Least Sedentary
Quartile 1 (<5.7)			ref	1.05	(0.76, 1.46)	1.34	(0.96, 1.87)	1.29	(0.94, 1.79)
Quartile 2 (5.8 – 8.3)		1.18	(0.85, 1.66)	1.40	(1.02, 1.92)	1.00	(0.72, 1.39)	1.32	(0.95, 1.84)
Quartile 3 (8.4 – 12.0)		1.14	(0.79, 1.63)	1.16	(0.84, 1.60)	1.27	(0.90, 1.79)	1.17	(0.85, 1.63)
Quartile 4 (>12.0)		1.41	(0.93, 2.15)	1.44	(0.95, 2.18)	1.19	(0.77, 1.83)	1.95	(1.33, 2.87)
	Most Sedentary
BMI 30-39 vs BMI < 25 kg/m2
Quartile 1 (<5.7)			ref	1.14	(0.81, 1.60)	1.42	(1.01, 2.01)	1.43	(1.03, 2.00)
Quartile 2 (5.8 – 8.3)		1.20	(0.85, 1.70)	1.55	(1.12, 2.15)	1.46	(1.06, 2.03)	2.06	(1.48, 2.87)
Quartile 3 (8.4 – 12.0)		1.62	(1.13, 2.32)	1.66	(1.20, 2.30)	2.08	(1.48, 2.93)	1.82	(1.31, 2.52)
Quartile 4 (>12.0)		1.99	(1.31, 3.02)	2.80	(1.88, 4.18)	2.27	(1.50, 3.43)	2.95	(2.01, 4.31)
BMI 40+ vs BMI < 25 kg/m2
Quartile 1 (<5.7)			ref	1.57	(0.90, 2.74)	1.86	(1.05, 3.29)	2.03	(1.19, 3.48)
Quartile 2 (5.8 – 8.3)		2.15	(1.24, 3.73)	2.77	(1.63, 4.71)	2.07	(1.20, 3.55)	3.14	(1.85, 5.32)
Quartile 3 (8.4 – 12.0)		3.59	(2.08, 6.22)	3.27	(1.95, 5.49)	3.28	(1.91, 5.60)	4.27	(2.58, 7.08)
Quartile 4 (>12.0)		4.97	(2.75, 8.99)	6.49	(3.67, 11.49)	5.64	(3.14, 10.13)	8.56	(4.97, 14.72)

^aParticipating women were enrolled in enrolled in the Southern Community Cohort Study.

^bBMI kg/m² category compared to healthy BMI (<25 kg/m²) category.

^cThe ORs and 95% CIs were calculated using race-stratified polytomous logistic regression models.

^dModels adjusted for current age, income, education, occupational status, smoking status, marital status, and self-reported comorbidities (including heart attack/coronary artery bypass surgery, stroke, diabetes, hypertension, depression, emphysema, and arthritis).